feat: Allow installation using nix

flake.nix

@@ -0,0 +1,38 @@
+{
+  description = "A Nix flake for a Go project using buildGoModule";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs"; # Use Nixpkgs for dependencies
+  };
+
+  outputs = { self, nixpkgs }: {
+    packages = nixpkgs.lib.genAttrs [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ] (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+      in
+      pkgs.buildGoModule rec {
+        pname = "projecthelper";
+        version = "0.5.0";    # Replace with your version
+
+        # The source code for the Go project
+        src = ./.;
+
+        installPhase = ''
+          mkdir -p $out/bin
+          cp $GOPATH/bin/projecthelper $out/bin/
+        '';
+
+        vendorHash = "sha256-Xq61Ji6gMP6OFdHSQqfrJVsKdatYM0ZezMbdz4Adr1A="; # nixpkgs.lib.fakeHash;
+
+        # Metadata
+        meta = with pkgs.lib; {
+          description = "A Go project packaged with buildGoModule";
+          license = licenses.mit; # Replace with your project's license
+          maintainers = [ maintainers.yourGitHubHandle ];
+          platforms = platforms.all; # Declare all platforms as supported
+        };
+      }
+    );
+  } ;
+}
+